BGS mineralogy and petrology collection record
| Sample number | E37401; COLLNODEW7657; |
|---|---|
| Sample Donor | Mitchell,M. (prob. William H. Mitchell, see WHM) |
| Rock name | Not entered |
| Stratigraphy | Not entered |
| Comments | Distances are measured from N end of Tunnel with face of shaft No.8 being at 6380 ft. from N end of Tunnel |
| Locality details | Portway Tunnel, Avon Gorge, Bristol. Bristol Corporation Sewerage Scheme. Shaft No.8, 450 yds. SE (133o) of Western end of Clifton Down Tunnel and 50 yds. E of E bank of River Avon. Tunnel is on a bearing of 322o from shaft No.8 |
| 50k map sheet | Bristol (264) |
| Map reference | ST 5618 7446 |
| Year collected | Not entered |
| Bore name | Not applicable |
| Confidentiality | No restrictions |
Petrological thin sections
Links to high resolution images
Transition from XPL to PPL light
E37401
